Fiche d'espèce de Copépode
Monstrilloida ( Ordre )
    Monstrillidae ( Famille )
        Monstrilla ( Genre )
Monstrilla longiremis  Giesbrecht, 1892   (F,M)
Syn.: ? Monstrilla helgolandica : Bourne, 1890 (After Sars, 1921 a, p.18)
Ref.:
Giesbrecht, 1892 (p.586, 589, 773, Descr.F, figs.F); Malaquin, 1901, p.111); T. Scott, 1902 (p.159, figs.F, Rem.); Sars, 1921 a (p.13, figs.F,M); Rose, 1933 a (p.341, figs.F,M); Sewell, 1949 (p.141: Rem.); Shih & al., 1971 (p.157); Threlkeld, 1977 (p.226); Gardner & Szabo, 1982 (p.86, figs.F,M); McAlice, 1982 (p.46); Huys & Boxshall, 1991 (p.160, 465, figs.F,M); Suarez-Morales, 1994 (p.264: Rem.); Grygier, 1994 (p.240: Rem.); 1995 a (p.9, 70); Suarez-Morales, 2010 (p.63, Redescr.M, Rem.); Vives & Shmeleva, 2010 (p.180, figs.F,M, Rem.); Suarez-Morales, 2011 (p.8, 10)
Espèce Monstrilla longiremis - Planche 1 de figures morphologiquesissued from : R. Huys & G.A. Boxshall in Copepod Evolution, The Ray Society, 1991. [p.163, Fig.2.5.6].
Male (from Norway): E, distal segment of A1.


Espèce Monstrilla longiremis - Planche 2 de figures morphologiquesissued from : R. Huys & G.A. Boxshall in Copepod Evolution, The Ray Society, 1991. [p.160, Fig.2.5.3].
Female: D, A1.


Espèce Monstrilla longiremis - Planche 3 de figures morphologiquesIssued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. - Fauna Flora Golf. Neapel, 1892. Atlas von 54 Tafeln. [Taf.46, Fig.10].
Female from mediterranean Sea): 10, habitus (lateral).


Espèce Monstrilla longiremis - Planche 4 de figures morphologiquesIssued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. - Fauna Flora Golf. Neapel, 1892. Atlas von 54 Tafeln. [Taf.46, Fig.14].
Female: 14, urosome (dorsal).


Espèce Monstrilla longiremis - Planche 5 de figures morphologiquesIssued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. - Fauna Flora Golf. Neapel, 1892. Atlas von 54 Tafeln. [Taf.46, Fig.22].
Female: 22, A1 (anterior view).


Espèce Monstrilla longiremis - Planche 6 de figures morphologiquesIssued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. - Fauna Flora Golf. Neapel, 1892. Atlas von 54 Tafeln. [Taf.46, Fig.37].
Female: 37, P3.


Espèce Monstrilla longiremis - Planche 7 de figures morphologiquesIssued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. - Fauna Flora Golf. Neapel, 1892. Atlas von 54 Tafeln. [Taf.46, Fig.41].
Female: 41, P5.


Espèce Monstrilla longiremis - Planche 8 de figures morphologiquesissued from : G.O. Sars in An Account of the Crustacea of Norway, with short descriptions and figures of all the species, 1921 a, 8. [Pl. IV].
Female (from Christiana Fjord: N Kvalø). Urs, urosome (dorsal).

Nota: Natatory legs resembling in structure those in M. longicornis, but differing in the presence of only a single denticle inside the 2nd basal segment (Basis), and in the total absence of any crenulations on the outer dege of the terminal segment of exopod.
Oral tubule rather small, occuring about inthe middle of the cephalic segment


Espèce Monstrilla longiremis - Planche 9 de figures morphologiquesissued from : G.O. Sars in An Account of the Crustacea of Norway, with short descriptions and figures of all the species, 1921a, 8. [Pl. V].
Male (from Christiana Fjord: N Kvalø). Urs, urosome (ventral and lateral, respectively).

Nota: Cephalic segment nearly perfectly cylindrical in shape and exceeding somewhat in length the remaining part of the body.
Urosome 4-segmented, as in the male of M. longicornis, with the copulative appendage of a very similar structure.
caudal rami each with 4 setae


Espèce Monstrilla longiremis - Planche 10 de figures morphologiquesissued from : E. Suarez-Morales in Zootaxa, 2010, 2510. [p.64, Fig.5].
Male (from Kvalø, Norway): A, cephalothorax (lateral, with anterior cephalic process arrowed); B, right A1; C, section of left A1 (dorsal view); D, distal section of same (ventral view); E, first three segments of left A1; F, detail of oral papilla and nipple-like process; G, urosome including 5th pediger (P5 omitted), genital somite with genital lappets, and two free somites (ventral view).
Scale bars: A = 0.5 mm; B, E, G = 0.1 mm; F = 0.05 mm.


Espèce Monstrilla longiremis - Planche 11 de figures morphologiquesissued from : E. Suarez-Morales in Zootaxa, 2010, 2510. [p.65, Fig.6].
Male:A, urosome with 5th pedigerous somite (lateral ); B, same (oblique lateral view); C, coxa and basipod of P2; D, detail of inner spiniform basipodal process; E, right P5; F, left P5; G, section of exopod of P1; H, detail of ornamentation of distal exopodal spiniform seta on P1; I, endopod of P1; J, endopod of P2; K, exopod of P2; L, exopod of P4.
Scale bars: A, B, C, G-I = 0.1 mm; D-F, H = 0.03 mm.


Espèce Monstrilla longiremis - Planche 12 de figures morphologiquesIssued from : T. Scott in Rep. Fishery Bd Scotl., 1902, 20 (3). [Pl. XXV, Figs. 3-4].
Female (from May Island, Firth of Forth, Scotland): 3, habitus (dorsal); 4, P5.

Nota: The setae of A1 did not show the branched structure exhibed in Giesbrecht's figure (but perhaps not seen); with exception of an articulation near the base, the segments are very indistinct.
Abdomen with 4 segments, but the articulation between the first and second not very marked, the 3rd and 4th short and distinct.
Caudal rami each with 5 setae.
Each branch of P5 furnished with 3 apical setae, the inner one being much shorter than the other two, and a 4th seta springs from the inner margin.

Ref. compl.:
Kim & al., 1993 (p.271); Hure & Krsinic, 1998 (p.97, 105); Nicholas & Nash R, 1999 (p.367); Holmes, 2001 (p.62); Bernier & al., 2002 (p.651, tab.1); Galbraith, 2009 (pers. comm.); Ben Ltaief & al., 2017 (p.1, Table III, Summer relative abundance)
NZ: 6

Carte de distribution de Monstrilla longiremis par zones géographiques
Loc:
G. of Maine, Ireland, Ireland Sea, Britain Is., Scotland (W May Island, Firth of Forth), Norway, North Sea, Medit. (Algiers, Napoli, G. of Gabes, Adriatic Sea), Vancouver Is., British Columbia, India (Bombay Harbour), NW Pacif. , S Korea
N: 11
Lg.:
(46) F: 3,1-3; (564) F: 3-3,7; M: 2; (748) F: 4,1-3; M: 3; 2,7; {F: 3,00-4,10; M: 2,0-3,0}
Rem.: For Sars (1921 a, p.14) this species is unquestionally the same as that recorded by Giesbrecht from the Mediterranean Sea. The present form shows a near relationship to M. longicornis.
Dernière mise à jour : 12/03/2020

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Razouls C., Desreumaux N., Kouwenberg J. et de Bovée F., 2005-2021. - Biodiversité des Copépodes planctoniques marins (morphologie, répartition géographique et données biologiques). Sorbonne Université, CNRS. Disponible sur http://copepodes.obs-banyuls.fr [Accédé le 09 mai 2021]

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